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| author | David Galiffi <[email protected]> | 2019-06-24 14:34:13 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2019-08-15 15:53:30 +0000 |
| commit | 0b226322434c7786381d7a594efca9cc46f85211 (patch) | |
| tree | 77444e6807ceac9e22bf0f4344af6d76604c7a01 /drivers/gpu/drm/amd/display/dc/bios/bios_parser.c | |
| parent | drm/amd/display: Improve sharing of HUBBUB register lists (diff) | |
| download | kernel-0b226322434c7786381d7a594efca9cc46f85211.tar.gz kernel-0b226322434c7786381d7a594efca9cc46f85211.zip | |
drm/amd/display: Synchronous DisplayPort Link Training
[WHY]
We require a method to perform synchronous link training.
[HOW]
Sync LT is broken into 3 basic steps.
"Begin" starts the state machine, and resets "preferred" link settings.
"Attempt" will attempt to train the link with a given set of training
parameters.
"End" stops the state machine, and will optionally disable the link phy.
Between "Begin" and "End" DPCD:600h must not be set to "2"
(D3:Powered Down).
Between "Begin" and "End", there may be multiple "Attempts" with different
training parameters.
Signed-off-by: David Galiffi <[email protected]>
Reviewed-by: Jun Lei <[email protected]>
Acked-by: Leo Li <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/bios/bios_parser.c')
0 files changed, 0 insertions, 0 deletions